CVE-2019-9971

CVSS V2 High 9 CVSS V3 High 8.8

Description

PhoneSystem Terminal in 3CX Phone System (Debian based installation) 16.0.0.1570 allows an attacker to gain root privileges by using sudo with the tcpdump command, without a password. This occurs because the -z (aka postrotate-command) option to tcpdump can be unsafe when used in conjunction with sudo.

Overview

CVE ID
CVE-2019-9971

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2022-06-07T18:15:10

Last Modified Date
2022-06-14T13:46:26

Weakness Enumerations

CWE	URL
CWE-269	http://cwe.mitre.org/data/definitions/269.html

CPE Configuration (Product)

CPE	Vulnerable	Operator
		AND
cpe:2.3:o:3cx:phone_system_firmware:16.0.0.1570:::::::*	1	OR
cpe:2.3:h:3cx:phone_system:-:::::::*	0	OR
		AND
cpe:2.3:o:debian:debian_linux:-:::::::*	1	OR

CVSS Version 2

Version
2.0

Vector String
AV:N/AC:L/Au:S/C:C/I:C/A:C

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
SINGLE

Confidentiality Impact
COMPLETE

Integrity Impact
COMPLETE

Availability Impact
COMPLETE

Base Score
9

Severity
HIGH

Exploitability Score
8

Impact Score
10

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
8.8

Base Severity
HIGH

Exploitability Score
2.8

Impact Score
5.9

References

Reference URL	Reference Tags
https://www.gosecure.net/blog/2022/05/31/security-advisory-multiple-vulnerabilities-impact-3cx-phone-system/
https://www.securusglobal.com/community/2014/03/17/how-i-got-root-with-sudo/
https://www.gosecure.net/blog

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2019-9971
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-9971

History

Created	Old Value	New Value	Data Type	Notes
2022-06-07 19:00:16				Added to TrackCVE